Lorentz completion of effective string action

Abstract

In the presence of a confining flux tube between a pair of sources the vacuum is no longer Poincare' invariant. This symmetry is nonlinearly realized in the effective string action. A general method for finding a large class of Lorentz invariant contributions to the action is described. The relationship between this symmetry and diffeomorphism invariance is further investigated.

8 pages, 3 figures, Contribution to the Proceedings of the conference 'Xth Quark Confinement and the Hadron Spectrum', October 8-12, 2012, TUM Campus Garching, Munich, Germany; references added

References in corpus (3)

• Symmetries for Galileons and DBI scalars on curved space
• Dirac-Born-Infeld action from spontaneous breakdown of Lorentz symmetry in brane-world scenarios
• The static quark potential from a multilevel algorithm for the improved gauge action